MIDI Thru

For more information, see the following topics:

The Default Thru Instrument

To monitor MIDI tracks while recording, enable MIDI Thru. When enabled, Pro Tools routes MIDI from your controllers to the device and channels assigned to the currently record-enabled MIDI track.

The MIDI preference for Global MIDI Playback Offset and individual MIDI track offsets do not affect MIDI routed with MIDI Thru.

When MIDI Thru is enabled, System Exclusive (Sysex) events are echoed to the MIDI device assigned to the record-enabled track—but only if the Sysex events are smaller than 256 bytes.

To enable MIDI Thru:

Select Options > MIDI Thru.

When using MIDI Thru, you should disable Local Control, if present, on your MIDI devices. Otherwise, your MIDI device may receive double MIDI notes, which can lead to stuck notes. If you are unsure how to disable Local Control for your instrument, see the manufacturer’s documentation.